He's been smoking too much marijuana if you ask me... isn't that right aaammmsterdddam?

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Also, on top of what I said above, you listen here okay?! Look closely at this fist, if you so much as smell it wrong it'll impose itself onto your face okay?! You think you tough? I bet behind that PC you're just a timid old clown capable of nothing but wackin the sackin. You smell me tigga?!

sm64 when jumping down the fence outside the castle when trying to close up to the door (basicly means i cant enter)
i also just recently got this one too (was just gonna edit the thread)
unhandled R4300i OpCode at: 80322868 unknown EC 94 09 FD stopping emulation!

Firstly, I would suggest you test this using the same ROM on another PC.

If the same thing occurs, obtain a verified good ROM from another undefined source.. *cough cough*

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Also, on top of what I said above, you listen here okay?! Look closely at this fist, if you so much as smell it wrong it'll impose itself onto your face okay?! You think you tough? I bet behind that PC you're just a timid old clown capable of nothing but wackin the sackin. You smell me tigga?!

"my mod" if a game is different to a certain extent (specifically the CRC summaries), Project64's per-game configuration might not recognize it in the database such that the settings can't be applied. An empty configuration can easily cause a crash.

Hopefully one of those 3 instances is a good dump that gets the configuration.

If even re-installing Project64 itself doesn't solve the problem, you most likely do have all inexact copies of the real game or may indeed have been using cheats. (Press Ctrl+C in Project64 when a game is running to see the cheats list.)